Remember when artists used to change their names to unintelligible symbols? That was great. Nowadays we get one lousy letter, like Daddy to Diddy. Santogold has just announced a name change. From this day forth Santogold is now Santigold. Why? No reason -- just sounds cool. At least Diddy got into a gun fight at a club and went on talk-show apology tour before changing his name. Now look at him: biggest billboard in Times Square. -SB